Q
My buds smell slightly musty late in flowering; what should I do?
A
Increase ventilation immediately, remove any affected material and check humidity; consider a gentle rinse if rot has begun.
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- Heavy-hitting indica with sweet grape notes and a compact, resinous structure
Grandaddy Purple
Feminised
Photoperiod
Grandaddy Purple is an indica-dominant hybrid prized for purple buds, deep relaxation and sweet grape flavour.
Why choose Grandaddy Purple?
- Deep, grape-forward flavour profile
- Dense, resinous purple buds
- Well-suited to greenhouse cultivation in the UK
THC |
18-23% |
CBD |
<1% |
Lineage |
Purple Urkle x Big Bud |
Genotype |
Indica-dominant hybrid |
Difficulty |
Moderate |
Flowering |
8-11 weeks |
Height |
Medium to tall (up to 1.5–2 m outdoors) |
Yield |
Medium to high (450–550 g/m² indoor; 350–450 g/plant outdoor) |
Taste |
Grape, Berry, Sweet syrup |
Seed Type |
Feminised photoperiod |
Climate |
Damp coastal |
Effects |
Deep physical relaxation, Euphoric uplift, Sedative sleepiness |
Environment |
Greenhouse or indoor preferred; tolerates outdoor in sheltered sites in Wiltshire |
About Grandaddy Purple
Grandaddy Purple is an indica-dominant cultivar created from Purple Urkle x Big Bud that produces dense, resinous buds with a distinct grape and berry character. It performs best in controlled environments where growers manage humidity and airflow to prevent mould, and in Wiltshire a greenhouse often provides the best compromise between light exposure and protection from coastal dampness.
Grow Difficulty:
Growing Grandaddy Purple in a damp coastal environment can raise the risk of mould and bud rot without vigilant air movement. Extra ventilation and dehumidification are necessary to manage the damp coastal conditions.
Flowering Time:
Flowering usually takes 8–11 weeks under a 12/12 light cycle. Monitor trichomes and pistil colour to select harvest timing for desired effects.
Yield:
Yields are medium to high when plants are grown in optimal conditions and fed correctly. Under greenhouse management yields often exceed those found in basic indoor setups.
Height:
Plants remain relatively compact indoors but can stretch outdoors to a medium-tall stature. Expect heights up to 1.5–2 m in a sheltered Wiltshire site.
Environment:
Grandaddy Purple performs well in greenhouse environments where humidity and airflow can be controlled in Wiltshire. Outdoors it does best in sheltered, sunny spots and may struggle in exposed coastal locations without protection.
Climate:
In Wiltshire's damp coastal climate, growers must prioritise airflow and disease prevention to protect dense buds. Using a greenhouse in Wiltshire helps moderate humidity and reduces exposure to coastal dampness.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
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Choose seed quantity
Selected:
5 Seeds
£8.00 / seed • You save £13.33
100% Satisfaction Guarantee • Secured Payments